OpenCV C++程序模糊视频

以下是对使用工具OpenCV在C++中模糊视频的C++代码的说明。

要知道的事情：

(1)该代码仅在Linux环境中编译。

(2)要在Windows中运行，请使用文件“ blur_video.o”并在cmd中运行它。但是，如果它没有运行(系统体系结构中的问题)，则可以通过对代码进行适当且明显的更改在Windows中对其进行编译，例如：使用代替。

(3)编译命令：g ++ w blur_vid.cpp或者blur_vid`pkgconfig libs opencv`

(4)运行命令：./blur_vid

(5)视频Bumpy.mp4必须与代码位于同一目录中。

在运行代码之前，请确保已在//系统上安装了OpenCV。

代码片段说明：

#include "opencv2/highgui/highgui.hpp"
// highgui - an interface to video and image capturing.
#include  // For dealing with images
#include 
// The header files for performing input and output.

using namespace cv;
// Namespace where all the C++ OpenCV functionality resides.

using namespace std;
// For input output operations.

int main()
{
    VideoCapture cap("Bumpy.mp4");
    // cap is the object of class video capture that tries to capture Bumpy.mp4
    if ( !cap.isOpened() ) // isOpened() returns true if capturing has been initialized.
    {
        cout << "Cannot open the video file. \n";
        return -1;
    }

    double fps = cap.get(CV_CAP_PROP_FPS); //get the frames per seconds of the video
    // The function get is used to derive a property from the element.
    // Example:
    // CV_CAP_PROP_POS_MSEC : Current Video capture timestamp.
    // CV_CAP_PROP_POS_FRAMES : Index of the next frame.
 
    namedWindow("A_good_name",CV_WINDOW_AUTOSIZE); //create a window called "MyVideo"
    // first argument: name of the window.
    // second argument: flag- types:
    // WINDOW_NORMAL : The user can resize the window.
    // WINDOW_AUTOSIZE : The window size is automatically adjusted to 
    //fit the displayed image() ), and you cannot change the window size manually.
    // WINDOW_OPENGL : The window will be created with OpenGL support.

    while(1)
    {
        Mat frame;
        // Mat object is a basic image container. frame is an object of Mat.
        if (!cap.read(frame)) // if not success, break loop
        // read() decodes and captures the next frame.
        {
            cout<<"\n Cannot read the video file. \n";
            break;
        }
    blur(frame,frame,Size(10,10)); // To blur the image.
    imshow("A_good_name", frame);
    // first argument: name of the window.
    // second argument: image to be shown(Mat object).
    
    if(waitKey(30) == 27) // Wait for 'esc' key press to exit
    {
        break;
    }
}
return 0;
}
// END OF PROGRAM

关于作者：

Aditya Prakash是印度学院的一名本科生瓦达达拉信息技术学院。他主要使用C++编写代码。他的座右铭是：到目前为止一切都很好。他打板球，看超级英雄电影，踢足球，并且是回答问题的忠实粉丝。

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